Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
gian nhung » gian vung, gioi nhung
tung tuan » trung tuan, hung tuan, quang tuan
thong con » thong cong, thuong con, khong con
nhung cau » chung cu, nhung bai, nhu cau
ho chieu » theo chieu, hoc thieu, doi chieu
thong co » thong o, trong co, thong cong

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung tuan ((thong con) OR (thong co)) gian nhung cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung tuan ((thong con) or (thong co)) gian nhung cau*.